- Volume 48 Issue 4
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Effects of DTPA application on Growth of Red Pepper (Capsicum annuum L.) and Chemical Properties of Nutrient Accumulated Soil in Plastic film House
- Kim, Myung Sook (Soil & Fertilizer Management Division, National Academy of Agricultural Science) ;
- Kim, Yoo Hak (Soil & Fertilizer Management Division, National Academy of Agricultural Science) ;
- Lee, Chang Hoon (Soil & Fertilizer Management Division, National Academy of Agricultural Science) ;
- Park, Seong Jin (Soil & Fertilizer Management Division, National Academy of Agricultural Science) ;
- Ko, Byong Gu (Soil & Fertilizer Management Division, National Academy of Agricultural Science) ;
- Yun, Sun Gang (Soil & Fertilizer Management Division, National Academy of Agricultural Science) ;
- Hyun, Byung Keun (Soil & Fertilizer Management Division, National Academy of Agricultural Science)
- Received : 2015.08.06
- Accepted : 2015.08.26
- Published : 2015.08.31
This study was conducted to evaluate effects of diethylene triamine penta acetic acid (DTPA) treatment on growth of red pepper and nutrient availability to salt accumulated soil in the plastic film house. The treatments were no application (Control), chemical fertilizers (NPK), DTPA (0.06, 0.13, and 0.19 mM) and the half of chemical fertilizers (NPK) with DTPA 0.06 mM. Fruit yield of red pepper showed no significant difference between the treatments (control, NPK, DTPA 0.06 mM, 0.13 mM, except for DTPA 0.19 mM. Red peppers were killed by DTPA 0.19 mM treatment because the high concentration of DTPA was toxic to crop. However, dry mass (stem and leave) and nutrient uptake of red pepper in DTPA 0.06 mM treatment increased significantly compared with those of control. In particular, nutrient uptake of red pepper in DTPA 0.06 mM treatment increased in the order of Fe, Mn, and Zn > Ca and Mg > K, as the magnitude of the stability constants of DTPA. Thus the application of DTPA 0.06 mM was the most effective for the alleviation of nutrient accumulation in the plastic film house soils.
DTPA;Red pepper;Chemical properties;Growth;Field scale
Supported by : NAAS
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